| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 7 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | South Africa | 3 | |
| #4 | Australia | 2 | |
| #5 | United States | 2 | |
| #6 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Milling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Van Der Zanden Johannes Petrus | 11 |
| #2 | Zanden Johannes Petrus Andreas | 4 |
| #3 | Zanden Johannes Petrus Andreas Van Der | 3 |
| Publication | Filing date | Title |
|---|---|---|
| ZA200304020B | Autogenous rotor. | |
| WO0145846A1 | Rotor with guide with inclined feed edge | |
| WO0067909A1 | Method and installation for guiding material in a single essentially predetermined stream | |
| WO9632195A1 | Rotor blade construction for impact crusher | |
| WO9632196A1 | Combined multiple impact crusher |